CA921674A - Composite pattern and method for making precision sand mold with an internal back draft - Google Patents

Composite pattern and method for making precision sand mold with an internal back draft

Info

Publication number
CA921674A
CA921674A CA081074A CA81074A CA921674A CA 921674 A CA921674 A CA 921674A CA 081074 A CA081074 A CA 081074A CA 81074 A CA81074 A CA 81074A CA 921674 A CA921674 A CA 921674A
Authority
CA
Canada
Prior art keywords
sand mold
composite pattern
internal back
back draft
making precision
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
CA081074A
Inventor
V. Harris George
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Caterpillar Inc
Original Assignee
Caterpillar Tractor Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Caterpillar Tractor Co filed Critical Caterpillar Tractor Co
Application granted granted Critical
Publication of CA921674A publication Critical patent/CA921674A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22C—FOUNDRY MOULDING
    • B22C7/00—Patterns; Manufacture thereof so far as not provided for in other classes
    • B22C7/005—Adjustable, sectional, expandable or flexible patterns
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S425/00—Plastic article or earthenware shaping or treating: apparatus
    • Y10S425/058—Undercut

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Casting Devices For Molds (AREA)
  • Molds, Cores, And Manufacturing Methods Thereof (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
CA081074A 1969-04-25 1970-04-24 Composite pattern and method for making precision sand mold with an internal back draft Expired CA921674A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US81917069A 1969-04-25 1969-04-25

Publications (1)

Publication Number Publication Date
CA921674A true CA921674A (en) 1973-02-27

Family

ID=25227390

Family Applications (1)

Application Number Title Priority Date Filing Date
CA081074A Expired CA921674A (en) 1969-04-25 1970-04-24 Composite pattern and method for making precision sand mold with an internal back draft

Country Status (7)

Country Link
US (1) US3570585A (en)
JP (1) JPS5013736B1 (en)
BE (1) BE749539A (en)
BR (1) BR7018466D0 (en)
CA (1) CA921674A (en)
DE (1) DE2020157A1 (en)
FR (1) FR2040236B1 (en)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1182905A (en) * 1967-11-07 1970-03-04 Volkswagenwerk Ag Production of Undercut Slots in Motor Vehicle Body Parts Made of Plastics Material.
US3857435A (en) * 1972-04-19 1974-12-31 Freeman Supply Co Process for making soluble cores
US3937267A (en) * 1974-01-03 1976-02-10 Kabushiki Kaisha Akita Method of preventing fin occurrence during metal casting
JPS51135042U (en) * 1975-04-21 1976-11-01
US4208029A (en) * 1977-04-19 1980-06-17 Caterpillar Tractor Co. Core apparatus
JPS55120844A (en) * 1979-03-12 1980-09-17 Suzuko Hatae Tool for miscellaneous use for bath detachable to support bar
DE2940171C2 (en) * 1979-10-04 1984-04-05 Goetze Ag, 5093 Burscheid Model for making casting molds
BR8009025A (en) * 1980-03-13 1982-02-09 Caterpillar Tractor Co SAND MOLD TEMPLATE AND METHOD FOR FORMING A SAND MOLD
FR2633851B1 (en) * 1988-07-07 1991-05-17 Mancelle Fonderie MODEL PLATE FOR THE PRODUCTION OF MOLDS FOR THE MANUFACTURE BY SAND FOUNDRY OF ICE JOINTS OR SIMILAR PARTS HAVING A BUCKLE
US4938277A (en) * 1988-12-08 1990-07-03 Korver Clayton P Casting mold with expansion member for radiation plates
US5651932A (en) * 1995-04-14 1997-07-29 Butler; Byron Method for investment wax casting of golf club heads
FR2762539A1 (en) * 1997-04-24 1998-10-30 Michelin & Cie ELEMENT MOLDING A PATTERN IN A TREAD
DE10247751B4 (en) * 2002-10-13 2005-09-08 Plötz, Rolf Method and apparatus for welding head hardened rails
ES2371731B1 (en) * 2010-06-11 2012-05-28 Irumold S.L. MOLD FOR INJECTED PARTS WITH INTERNAL CONTRASALIDS.

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US396506A (en) * 1889-01-22 Apparatus for molding pipes
US1769455A (en) * 1929-08-28 1930-07-01 Doehler Die Casting Co Core for undercut cup-shaped articles
US3216071A (en) * 1962-11-26 1965-11-09 Altamil Corp Apparatus for producing molds

Also Published As

Publication number Publication date
FR2040236B1 (en) 1976-07-16
US3570585A (en) 1971-03-16
BE749539A (en) 1970-10-26
FR2040236A1 (en) 1971-01-22
JPS5013736B1 (en) 1975-05-22
DE2020157A1 (en) 1970-10-29
BR7018466D0 (en) 1973-03-29

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